Rosie O’Donnell fires back at David Letterman’s comment on her upcoming wedding

When talk show giants attack each other, things can get crazy fast. That's why it's especially surprising that David Letterman indulged in a bit of none too subtle gay-bashing involving Rosie O'Donnell's love life this week.

O'Donnell recently announced her engagement to Michelle Rounds, only to hear the Late Show maestro compare her to a tow-truck driver.

Rosie rightly took offense this week. She played back Letterman's wisecrack on her show:

'The woman she is marrying, her fiancee, was driving and her car broke down. And guess what happened? Rosie pulls up right behind her in her tow truck,' joked Letterman on Tuesday's broadcast.

Suggesting lesbians are mannish is a last century cliche that Rosie - and a big percent of her audience - considered a joke too far. E Online reported Rosie's comeback.

'Why is that Dave? Why? I don't remember making fun of you when you had sex with all your interns! I didn't do that,' O'Donnell scoffed. 'I didn't make fun of your rampant, throbbing heterosexuality, did I Dave?'

O'Donnell followed up with a Top Ten Five Reasons Why I Will Not Do Your Program.

'Dave, when you had that heart surgery, you shouldn't have told the doctors to take out that whole thing,' O'Donnell quipped. 'I remember when you had one, Dave, you were nice then.'

And regarding the tow ruck gibe she added: 'Not only do you appear to be antigay, you're anti-tow truck driver and that just pisses me off.'-------------------READ MORE: